<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="../js/jQuery.js"></script>
    <script>
        $(function(){
          var divs =$("div");
          $.each(divs,function(){
            alert(this.innerHTML);
          })
        })
    </script>
    </script>
</head>
<body>
  <div>约吗</div>
  <div>哈哈</div>
  <div>嘿嘿</div>
  <div>嘻嘻</div>
</body>
</html>